National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

A Few Clouds

68°F

20°C

Humidity 68%
Wind Speed N 7 mph
Barometer 30.14 in (1020.6 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 12 Jul 6:54 am EDT
Extended Forecast for

Watertown MA

  • Today

    Today: Sunny, with a high near 84. Light and variable wind becoming east 5 to 9 mph in the morning.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. Southeast wind around 5 mph becoming light and variable after midnight.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 91. Southwest wind 5 to 11 mph.

    High: 91 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 72. Southwest wind 8 to 10 mph.

    Low: 72 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99. West wind 8 to 14 mph, with gusts as high as 24 mph.

    High: 99 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 81. Southwest wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 81 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 100. West wind 10 to 13 mph, with gusts as high as 24 mph.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 72. Northwest wind 5 to 9 mph.

    Low: 72 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and hot, with a high near 94. Northwest wind 7 to 9 mph.

    High: 94 °F

    Hot

Detailed Forecast

Today
Sunny, with a high near 84. Light and variable wind becoming east 5 to 9 mph in the morning.
Tonight
Mostly clear, with a low around 62. Southeast wind around 5 mph becoming light and variable after midnight.
Monday
Sunny and hot, with a high near 91. Southwest wind 5 to 11 mph.
Monday Night
Mostly clear, with a low around 72. Southwest wind 8 to 10 mph.
Tuesday
Sunny and hot, with a high near 99. West wind 8 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly clear, with a low around 81. Southwest wind 10 to 13 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny and hot, with a high near 100. West wind 10 to 13 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 72. Northwest wind 5 to 9 mph.
Thursday
Sunny and hot, with a high near 94. Northwest wind 7 to 9 mph.
Thursday Night
Partly cloudy, with a low around 72. West wind around 6 mph.
Friday
Sunny and hot, with a high near 92. West wind 6 to 9 mph.
Friday Night
Mostly clear, with a low around 69. Northwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 89. Light and variable wind becoming southwest 5 to 8 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Watertown MA
 42.37°N 71.16°W (Elev. 46 ft)
Last Update:
2:03 am EDT Jul 12, 2026
Forecast Valid:
7am EDT Jul 12, 2026-6pm EDT Jul 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation